R7851 Series
Optical Flame Amplifiers
High-precision optical flame detection for industrial burner safety. Available in standard and dynamic models for diverse applications.
What is the Honeywell R7851 Series?
The R7851 Series optical flame amplifiers offer high-precision flame detection using optical sensors to monitor flame signals in industrial combustion systems. These amplifiers are designed for use in burner control systems where accurate flame detection is essential for safe operation. The R7851 series features both standard and dynamic models for enhanced flexibility in various industrial applications.
These amplifiers are typically used with Honeywell C7915 series infrared (optical) flame detectors.
Typical Applications
R7851 Series optical flame amplifiers are widely used in:
- Burner control systems requiring optical flame detection
- Systems that operate in high-temperature environments
- Thermal processes such as industrial furnaces and boilers
- Applications requiring dynamic flame response times
Selection Guide
Standard Optical
Reliable optical detection for C7915 sensors (B Series).
Dynamic Optical
Enhanced dynamic response for critical applications (C Series).
Key Differences Within the R7851 Series
The R7851 Series includes both standard optical flame amplifiers and dynamic models that provide rapid response times for high-performance combustion systems:
- R7851B Series: Standard optical amplifiers for general industrial burner control using C7915 sensors.
- R7851C Series: Dynamic optical amplifiers offering enhanced response times and reliability for critical industrial applications.
Frequently Asked Questions
What is the primary function of the Honeywell R7851 Series?
The Honeywell R7851 Series is designed to provide precise and reliable control for industrial combustion systems, ensuring optimal performance, safety, and energy efficiency across various heating applications.
How do I select the right model within the R7851 Series?
Selecting the correct model depends on your specific application requirements, including operating voltage, required torque or capacity, and control logic (e.g., on-off vs. modulating). Refer to the model overview table above or contact our engineering team for technical assistance.
Are R7851 Series components suitable for retrofitting existing systems?
Yes, Honeywell designs the R7851 Series with standardization in mind, making them excellent choices for both new installations and retrofitting older or legacy combustion systems to meet modern safety and emissions standards.
All Models
R7851 Series Model Comparison
| Model | Series | Application | Features |
|---|---|---|---|
| R7851B1000/U | Standard | Burner Detection | Optical flame amplifier |
| R7851B1018/U | Standard | Industrial Burner Systems | Industrial-grade flame amplifier |
| R7851C1008/U | Dynamic | High-Speed Combustion Systems | Dynamic optical flame amplifier |